Threaded Plug Gauge Dimension Type Metric Gauge Type Go (Plus) Handle Design Member Only Thread Class 6H Thread Size M5 x 0.80 Thread Type Metric Tolerance Class X Gauge Finish Chrome Plated Gauge Length - Go Member 10.30 mm Gauge Material Tool Steel Hardness RC 70-72 Included Certification Certificate of Accuracy With NIST Traceability Pitch Diameter - Go Member 4.48 mm Standards ASME B1.16M Thread Direction Right Hand